IF I was writing the next DRAFT LAW...the children of Veterans would be Exempt.
Everyone else is ELIGABLE!
The children of {serving} Congressmen and Senators would be classed 1A+, {Note the "+", these folks MUST serve ASAP (unless they have served)}.
Same, for the kids of serving and past Presidents & VPs.
My DRAFT would ignore Gender.
Such a provision would probably violate the Constitutional prohibition against "taintature of the blood." You are not Constitutionally allowed to pass laws that treat someone differently due to the actions of their parents.